584. 



Dr. A. D. Waller. 



New Method for the [June 17, 



1. Blood T9X22C.C. 2nd dist. T 3x19 0-000198 + 0-000057. 



2. Brain T6x20c.c. „ T2x22 0-000120 +0-000044. 



3. Heart T6xl9c.c. „ T 1-15X22 0-000014 + 0-000033. 



4. Stomach wall T 15X20 c.c. „ T6x23 0-000300 + 0-000138. 



5. Duodenum wall ... T 1-5 x 21 c.c. „ T 1-25 x 24 0-000031+0-000030. 



6. Muscle T0x20c.c. Nil. 



Note. — This experiment shows that after an excessive dose of HON the poison is 

 discoverable in the walls of the stomach especially, as well as in other organs and in the 

 blood, under the ordinary conditions of a delayed post-mortem investigation. It also 

 indicates, by the amounts found in 2nd distillates, that a first distillation may have failed 

 to recover all the HON present in the blood and tissues. 



Experiment 18. — Cat ; 2-7 kilos. ; ether ; tracheotomy. Death in half a minute by 

 inhalation through a Woulfe bottle over a 1 per cent, solution of HON. Distillates as 

 usual. 



1. Blood T 6X21 c.c. 0-000126. 



2. Brain T 4x20 c.c. 0-000080. 



3. Heart T 7 x 22 c.c. 0-000156. 



4. Muscle T Ox 21 c.c. Nil. 



Note. — An approximation to the amount of HCN inhaled was arrived at as follows. 

 The animal stopped breathing in half a minute, having inhaled 600 c.c. of air. A litre of 

 air driven through the Woulfe (bottle, in one minute into 100 c.c. picrate gave T 120, viz. 

 0-012000, .". the amount inhaled was 0*007200 gramme. 



Experiment 19. — Cat ; 3-2 kilos. ; urethane and chloroform. Death after three 

 successive injections into the stomach of 5 c.c. 1/1000 HCN (in all 15 milligrammes). 

 Body set aside for 24 hours. Distillates as usual. 



Blood 



Brain 



Heart 



Stom. wall 

 Stom. cont. 

 Muscle 



Blood (taken before administration of HCN). .. T 0 x 20 



„ (after death) T 7 x 22 



Brain T 075 x 23 



Heart T 5 x 22 



Stomach wall T .30 x 21 +T 5 x 22 



„ contents (consisting of 8 c.c. liquid)... T 40 x 20 + T 6x21 



Muscle T0x20 



Nil. 



0-000154. 

 0-000017. 

 0-000110. 



0-0006.300 + 0-00011. 

 0-000800 + 0-000126. 

 Nil. 



Experiment 20 (.lune 15). — Cat ; 2-9 kilos. ; ether. Death by subcutaneous injection of 

 1 c.c. 1 per cent. HCN (=10 milligrammes). 



o >oo 200 



Blood 



Brain 



Heart 



Stomach 

 Muscle ,. 



